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Refined timekeeping

The 1815 CHRONOGRAPH unites traditional elements with latest-generation technology. The calibre L951.5 movement enhances the mechanism of the precisely jumping minute counter with a comfortable flyback function. This makes it possible to instantaneously reset the chronograph hands to zero during an ongoing measurement simply by actuating a button, and to immediately start a new measurement by releasing it.

With its minute counter and flyback function, the 1815 CHRONOGRAPH has a precise stop function.
With its minute counter and flyback function, the 1815 CHRONOGRAPH has a precise stop function.

The dial layout is well-organised and functional as in A. Lange & Söhne’s historic pocket chronographs. Slightly shifted below the horizontal centreline, the two subsidiary dials emphasise the classic origins of the watch, as does the characteristic railway-track minute scale. The additional graduation on the minute scale allows readings of stopped times to an accuracy of one-fifth of a second. Pulse rates can be determined with the pulsometer scale on the outer ring of the dial.

1815 CHRONOGRAPH – A. Lange & Söhne

The short film shows the 1815 Chronograph and its striking design features: The three-dimensional subdivided dial, with its Arabic numerals and blued hands for the hours, minutes, seconds and chronograph functions and the equally aesthetic and complicated movement, with its dragging chronograph mechanism and vibrating off-set balance. Finally, the correct operation of the chronograph functions is demonstrated.

Discover the models

4 Models of the 1815 CHRONOGRAPH

Movement L951.5

Number of movement parts


Power reserve

60 hours when fully wound

Oscillation system

Frequency: 18000 semi-oscillations per hour

Beat-adjustment system: Eccentric poising weight

Movement measures

Diameter: 30.6 mm; height: 6.1 mm

Movement Movement